<template>
  <div v-loading="loading" class="cropper-content">
    <div class="cropper-box">
      <div class="cropper">
        <vue-cropper
          ref="cropper"
          :img="option.img"
          :output-size="option.outputSize"
          :output-type="option.outputType"
          :info="option.info"
          :can-scale="option.canScale"
          :auto-crop="option.autoCrop"
          :auto-crop-width="autoCropWidth"
          :auto-crop-height="autoCropHeight"
          :fixed="option.fixed"
          :fixed-number="option.fixedNumber"
          :full="option.full"
          :fixed-box="option.fixedBox"
          :can-move="option.canMove"
          :can-move-box="option.canMoveBox"
          :original="option.original"
          :center-box="option.centerBox"
          :height="option.height"
          :info-true="option.infoTrue"
          :max-img-size="option.maxImgSize"
          :enlarge="option.enlarge"
          :mode="option.mode"
          @realTime="realTime"
          @imgLoad="imgLoad"
        />
      </div>
      <div class="tips">
        <i class="el-icon-warning-outline"></i>
        选中裁剪框可使用滚轮缩放,按住左键拖动图片
      </div>
      <!--底部操作工具按钮-->
      <div class="footer-btn">
        <div class="scope-btn">
          <el-button size="mini" type="danger" plain icon="el-icon-zoom-in" @click="changeScale(1)">放大</el-button>
          <el-button size="mini" type="danger" plain icon="el-icon-zoom-out" @click="changeScale(-1)">缩小</el-button>
          <el-button size="mini" type="danger" plain @click="rotateLeft">↺ 左旋转</el-button>
          <el-button size="mini" type="danger" plain @click="rotateRight"> ↻ 右旋转 </el-button>
        </div>
        <div class="upload-btn">
          <el-button size="mini" @click="handleCancel">取消</el-button>
          <el-button size="mini" type="primary" @click="handleSubmit">完成</el-button>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import { VueCropper } from 'vue-cropper'

export default {
  name: 'CropperImage',
  components: {
    VueCropper,
  } /*props: ['name2'],*/,
  props: {
    url: {
      // 图片
      type: String,
    },
    autoCropWidth: {
      // 默认生成截图框宽度
      type: Number,
      default: 375,
    },
    autoCropHeight: {
      // 默认生成截图框高度
      type: Number,
      default: 375,
    },
    busType: {
      type: String,
      default: 'advertPic',
    },
  },
  data() {
    return {
      loading: false,
      name: this.Name,
      previews: {},
      option: {
        img: '', // 裁剪图片的地址
        outputSize: 1, // 裁剪生成图片的质量(可选0.1 - 1)
        outputType: 'jpeg', // 裁剪生成图片的格式（jpeg || png || webp）
        info: true, // 图片大小信息
        canScale: true, // 图片是否允许滚轮缩放
        autoCrop: true, // 是否默认生成截图框 // autoCropWidth: 410, 默认生成截图框宽度 // autoCropHeight: 150,默认生成截图框高度
        fixed: false, // 是否开启截图框宽高固定比例
        fixedNumber: [1.53, 1], // 截图框的宽高比例
        full: true, // false按原比例裁切图片，不失真
        fixedBox: true, // 固定截图框大小，不允许改变
        canMove: true, // 上传图片是否可以移动
        canMoveBox: false, // 截图框能否拖动
        original: false, // 上传图片按照原始比例渲染
        centerBox: false, // 截图框是否被限制在图片里面
        height: true, // 是否按照设备的dpr 输出等比例图片
        infoTrue: false, // true为展示真实输出图片宽高，false展示看到的截图框宽高
        maxImgSize: 3000, // 限制图片最大宽度和高度
        enlarge: 1, // 图片根据截图框输出比例倍数
        mode: '375px 375px', // 图片默认渲染方式
      },
      randomFileName: '',
    }
  },
  mounted() {
    this.option.img = this.url
  },
  methods: {
    // 初始化函数
    imgLoad(msg) {
      console.log('工具初始化函数=====' + msg)
    },
    // 图片缩放
    changeScale(num) {
      num = num || 1
      this.$refs.cropper.changeScale(num)
    },
    // 向左旋转
    rotateLeft() {
      this.$refs.cropper.rotateLeft()
    },
    // 向右旋转
    rotateRight() {
      this.$refs.cropper.rotateRight()
    },
    // 实时预览函数
    realTime(data) {
      this.previews = data
    },
    createNewFileName() {
      const now = Date.now()
      const fileName = now + '-' + Math.ceil(Math.random() * 100)
      return fileName + '.jpg'
    },
    // 取消
    handleCancel() {
      this.$emit('close')
    },
    // 完成
    handleSubmit() {
      const _this = this
      this.$refs.cropper.getCropData(async (data) => {
        console.log(data, 111)
        _this.$emit('submit', data)
      })
    },
  },
}
</script>
<style scoped lang="scss">
.cropper-content {
  display: flex;
  display: -webkit-flex;
  justify-content: flex-end;
  .cropper-box {
    flex: 1;
    width: 100%;
    .cropper {
      width: auto;
      height: 375px;
    }
  }
  .show-preview {
    flex: 1;
    -webkit-flex: 1;
    display: flex;
    display: -webkit-flex;
    justify-content: center;
    .preview {
      overflow: hidden;
      border: 1px solid #67c23a;
      background: #cccccc;
    }
  }
}
.footer-btn {
  width: 100%;
  margin-top: 30px;
  display: flex;
  display: -webkit-flex;
  justify-content: flex-end;
  .scope-btn {
    display: flex;
    display: -webkit-flex;
    justify-content: space-between;
    padding-right: 10px;
  }
  .upload-btn {
    flex: 1;
    -webkit-flex: 1;
    display: flex;
    display: -webkit-flex;
    justify-content: flex-end;
  }
  .btn {
    outline: none;
    display: inline-block;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    -webkit-appearance: none;
    text-align: center;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    outline: 0;
    -webkit-transition: 0.1s;
    transition: 0.1s;
    font-weight: 500;
    padding: 8px 15px;
    font-size: 12px;
    border-radius: 3px;
    color: #fff;
    background-color: #409eff;
    border-color: #409eff;
    margin-right: 10px;
  }
}
.tips {
  margin-top: 10px;
  font-size: 12px;
  color: #666666;
}
</style>
